Ghaut-drier



A7 BIGELOW.

Grain Drier.

Patented May 16, 1848.

'r sr AMOS BIGELOW, OF ADRIAN, MICHIGAN.

GRAIN-DRIER.

To all whom it may concern Be it known that I, AMos BIGELOW, of Adrain, in the county of Lenawee and State of Michigan, have invented new anduseful Improvements in Machinery for Drying Grain, and that the following is a full, clear, and exact description of the principle or character which distinguishes them from all other things before known, and of the manner of making, constructing, and using the same, reference being had to the accompanying drawings, making part of this specification, in which Figure 1 is an isometrical projection of the apparatus, and Fig. 2, a vertical longitudinal section.

The same letters indicate like parts in all the figures.

The improvements for drying grain invented by me are constructed in the following manner: A furnace is formed as at (a) Fig. 2, above which a long semi-cylindrical metal trough (b) is set resting on the brick work at the sides. Just above this there are spaces (0) left in the brick work which have doors (d) that can be made to cover them. Above these apertures there is a cover or floor (e) and again over that there is a second long trough (f) like that first named.

A flue or flues (g) connect the furnace space ((0) with the space above the floor (6) and upper trough (f) at one end, and at the opposite end there is a chimney (h). The

arrows show the direction of the smoke. A cover shuts over the upper trough which forms it into a cylinder and incloses it while it can be readily removed if desired. In each of the troughs above named there is a shaft or axle around which a spiral thread (is) is wound, this construction belng similar to a carrier in a flour mill. The two shafts are geared together outside the kiln by spur wheels (Z) which are also connected with the driving power and caused to turn in opposite directions. The corn enters the upper trough through a spout at one end whence it is carried to the other end by the spiral on the shaft above named. From thence it descends down through a spout (a) into the lower trough and is reconducted back to the opposite end of the kiln by the lower screw that is turning in a contrary direction to the upper one. It is then discharged out of a spout (0.), having been dried perfectly during it passage through the kiln, a matter of great importance in managing the process properly. This mode of construction gives a ready means of getting at the grain during its descent through the machine, while it has the advantage of being easily inclosed like the ordinary kilns for similar purposes.

TVhat I claim as my invention, and desire to secure by Letters Patent is- Constructing a kiln, substantially as described, having troughs through which the grain passes, placed one above the other and accessible at all points where the grain passes in its course through the drying kiln, as above specified, the course of the grain being in one direction and that of the smoke and heat in another, but in separate compartments.

AMOS BIGELOW.

Witnesses:

D. B. DENNIS, L. B. BOWEN. 

